Note 8 - Note Payable - Bank (Detail) (USD $)	0 Months Ended	1 Months Ended						3 Months Ended		12 Months Ended	3 Months Ended
	Feb. 05, 2013	Feb. 28, 2013	Aug. 31, 2012	Mar. 31, 2013	Mar. 31, 2013 Above Prime Rate [Member] Formula Revolving Line (Member)	Mar. 31, 2013 Above Prime Rate [Member] Formula Revolving Line (Member)	Mar. 31, 2013 Formula Revolving Line (Member)	Mar. 31, 2013 Non-Formula Revolving Line (Member) Maximum [Member]	Mar. 31, 2013 Non-Formula Revolving Line (Member)	Dec. 31, 2012 Non-Formula Revolving Line (Member)	Mar. 31, 2013 Maximum [Member]	Mar. 31, 2013 Minimum [Member]
Line of Credit Facility, Increase, Additional Borrowings (in Dollars)	$ 1,000,000	$ 1,000,000	$ 1,000,000
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)			$ 3,000,000	$ 3,000,000
Debt Instrument, Basis Spread on Variable Rate					1.90%	2.40%	2.15%
Line of Credit Facility, Interest Rate During Period								5.90%	5.65%	6.15%
Liquidity Ratio											1.25	1.00